Abstract: On a known peat harvesting apparatus for mounting on an agricultural tractor comprising (a) a digging chain for insertion into and movement across a bog so as to form a groove, and (b) a peat extrusion press, a roller (107) is mounted above the digging chain (104) to direct harvested peat into the press and prevent the apparatus from clogging. A single drive transmission connects both digging chain (104) and extrusion press (105) to the tractor power take-off shaft. A macerating mechanism is provided in the extrusion press (105) which allows extrusions of relatively small cross section to be produced.